3D printing of continuous fiber-reinforced thermoset composites

被引：111

作者：

He, Xu ^{[1
]}

Ding, Yuchen ^{[1
]}

Lei, Zepeng ^{[2
]}

Welch, Sam ^{[1
]}

Zhang, Wei ^{[2
]}

Dunn, Martin ^{[1
]}

Yu, Kai ^{[1
]}

机构：

[1] Univ Colorado, Dept Mech Engn, Denver, CO 80204 USA

[2] Univ Colorado, Dept Chem, Boulder, CO 80309 USA

来源：

ADDITIVE MANUFACTURING | 2021年 / 40卷

基金：

美国国家科学基金会;

关键词：

3D printing; Direct ink writing; Continuous fiber; Thermoset composites; COVALENT ADAPTABLE NETWORKS; CARBON-FIBER; MECHANICAL-PROPERTIES; CHEMOMECHANICS; POLYMERS; GLASS;

D O I：

10.1016/j.addma.2021.101921

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Current printing methods for continuous fiber-reinforced composites require the composites to quickly solidify during the printing, so the matrix is limited to thermoplastics or thermosets with fast curing mechanisms. This paper presents the first design of a 3D printer head for direct-ink-writing that can overcome the limitations on printable resins. It leverages the shear stress imposed on the fiber to enable the ready extrusion of composite filaments and is applicable to a wide variety of thermoset resins and commercially-available continuous fibers. The developed printing method can create thermally-curable composite components with covalently bonded interfaces and comparable mechanical strength as directly-molded samples. It also enables the free-standing 3D printing of UV-curable composites. Overall, the developed printing method allows the composite parts to be designed quickly to meet unique specifications, as well as provides new functions in 4D printing, biomedical printing, and the printing of functional devices.

引用

页数：10

共 61 条

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